M800 brakes pulsating

This is a discussion on M800 brakes pulsating within Technical Stuff, part of the Under the Hood category; Hi guys i had recently overhauled the brakes on My M-800 (97) from sai service wherein the master cylinder was ...

Hi guys i had recently overhauled the brakes on My M-800 (97) from sai service wherein the master cylinder was changed due to leakage.The brakes were working fine for a while but today i have noticed that braking at high speeds is causing the brakes to pulsate a.la ABS system.ie It feels like a little judder at the pedal bit only at high speeds.I am worried is this normal.Also car was driven after a gap of 18 days.It was parked all the while this time.